Seasonal nitrogen fluxes of the Lena River Delta
The Arctic is nutrient limited, particularly by nitrogen, and is impacted by anthropogenic global warming which occurs approximately twice as fast compared to the global average. Arctic warming intensifies thawing of permafrost-affected soils releasing their large organic nitrogen reservoir. This or...
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ftzbmed:oai:frl.publisso.de:frl:6445384 2023-11-12T04:10:41+01:00 Seasonal nitrogen fluxes of the Lena River Delta Sanders, Tina Fiencke, Claudia Fuchs, Matthias Haugk, Charlotte Juhls, Bennet Mollenhauer, Gesine Ogneva, Olga Overduin, Paul Palmtag, Juri Povazhniy, Vasily Strauss, Jens Tuerena, Robyn Zell, Nadine Dähnke, Kirstin 2021 https://repository.publisso.de/resource/frl:6445384 https://doi.org/10.1007/s13280-021-01665-0 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8692507/ eng eng https://repository.publisso.de/resource/frl:6445384 https://doi.org/10.1007/s13280-021-01665-0 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8692507/ https://creativecommons.org/licenses/by/4.0/ http://lobid.org/resources/99370676417106441#!, 51(2):423-438 Nitrous oxide Changing Arctic Ocean Seasons [MeSH] Arctic Ocean Nitrogen Dissolved Organic Matter [MeSH] Lena Delta Environmental Monitoring [MeSH] Rivers [MeSH] Nitrogen/analysis [MeSH] Zeitschriftenartikel 2021 ftzbmed https://doi.org/10.1007/s13280-021-01665-0 2023-10-22T22:06:57Z The Arctic is nutrient limited, particularly by nitrogen, and is impacted by anthropogenic global warming which occurs approximately twice as fast compared to the global average. Arctic warming intensifies thawing of permafrost-affected soils releasing their large organic nitrogen reservoir. This organic nitrogen reaches hydrological systems, is remineralized to reactive inorganic nitrogen, and is transported to the Arctic Ocean via large rivers. We estimate the load of nitrogen supplied from terrestrial sources into the Arctic Ocean by sampling in the Lena River and its Delta. We took water samples along one of the major deltaic channels in winter and summer in 2019 and sampling station in the central delta over a one-year cycle. Additionally, we investigate the potential release of reactive nitrogen, including nitrous oxide from soils in the Delta. We found that the Lena transported nitrogen as dissolved organic nitrogen to the coastal Arctic Ocean and that eroded soils are sources of reactive inorganic nitrogen such as ammonium and nitrate. The Lena and the Deltaic region apparently are considerable sources of nitrogen to nearshore coastal zone. The potential higher availability of inorganic nitrogen might be a source to enhance nitrous oxide emissions from terrestrial and aquatic sources to the atmosphere. Article in Journal/Newspaper Arctic Arctic Ocean Global warming lena delta lena river permafrost PUBLISSO Fachrepositorium Lebenswissenschaften (ZB MED) Arctic Arctic Ocean Ambio 51 2 423 438 |
institution |
Open Polar |
collection |
PUBLISSO Fachrepositorium Lebenswissenschaften (ZB MED) |
op_collection_id |
ftzbmed |
language |
English |
topic |
Nitrous oxide Changing Arctic Ocean Seasons [MeSH] Arctic Ocean Nitrogen Dissolved Organic Matter [MeSH] Lena Delta Environmental Monitoring [MeSH] Rivers [MeSH] Nitrogen/analysis [MeSH] |
spellingShingle |
Nitrous oxide Changing Arctic Ocean Seasons [MeSH] Arctic Ocean Nitrogen Dissolved Organic Matter [MeSH] Lena Delta Environmental Monitoring [MeSH] Rivers [MeSH] Nitrogen/analysis [MeSH] Sanders, Tina Fiencke, Claudia Fuchs, Matthias Haugk, Charlotte Juhls, Bennet Mollenhauer, Gesine Ogneva, Olga Overduin, Paul Palmtag, Juri Povazhniy, Vasily Strauss, Jens Tuerena, Robyn Zell, Nadine Dähnke, Kirstin Seasonal nitrogen fluxes of the Lena River Delta |
topic_facet |
Nitrous oxide Changing Arctic Ocean Seasons [MeSH] Arctic Ocean Nitrogen Dissolved Organic Matter [MeSH] Lena Delta Environmental Monitoring [MeSH] Rivers [MeSH] Nitrogen/analysis [MeSH] |
description |
The Arctic is nutrient limited, particularly by nitrogen, and is impacted by anthropogenic global warming which occurs approximately twice as fast compared to the global average. Arctic warming intensifies thawing of permafrost-affected soils releasing their large organic nitrogen reservoir. This organic nitrogen reaches hydrological systems, is remineralized to reactive inorganic nitrogen, and is transported to the Arctic Ocean via large rivers. We estimate the load of nitrogen supplied from terrestrial sources into the Arctic Ocean by sampling in the Lena River and its Delta. We took water samples along one of the major deltaic channels in winter and summer in 2019 and sampling station in the central delta over a one-year cycle. Additionally, we investigate the potential release of reactive nitrogen, including nitrous oxide from soils in the Delta. We found that the Lena transported nitrogen as dissolved organic nitrogen to the coastal Arctic Ocean and that eroded soils are sources of reactive inorganic nitrogen such as ammonium and nitrate. The Lena and the Deltaic region apparently are considerable sources of nitrogen to nearshore coastal zone. The potential higher availability of inorganic nitrogen might be a source to enhance nitrous oxide emissions from terrestrial and aquatic sources to the atmosphere. |
format |
Article in Journal/Newspaper |
author |
Sanders, Tina Fiencke, Claudia Fuchs, Matthias Haugk, Charlotte Juhls, Bennet Mollenhauer, Gesine Ogneva, Olga Overduin, Paul Palmtag, Juri Povazhniy, Vasily Strauss, Jens Tuerena, Robyn Zell, Nadine Dähnke, Kirstin |
author_facet |
Sanders, Tina Fiencke, Claudia Fuchs, Matthias Haugk, Charlotte Juhls, Bennet Mollenhauer, Gesine Ogneva, Olga Overduin, Paul Palmtag, Juri Povazhniy, Vasily Strauss, Jens Tuerena, Robyn Zell, Nadine Dähnke, Kirstin |
author_sort |
Sanders, Tina |
title |
Seasonal nitrogen fluxes of the Lena River Delta |
title_short |
Seasonal nitrogen fluxes of the Lena River Delta |
title_full |
Seasonal nitrogen fluxes of the Lena River Delta |
title_fullStr |
Seasonal nitrogen fluxes of the Lena River Delta |
title_full_unstemmed |
Seasonal nitrogen fluxes of the Lena River Delta |
title_sort |
seasonal nitrogen fluxes of the lena river delta |
publishDate |
2021 |
url |
https://repository.publisso.de/resource/frl:6445384 https://doi.org/10.1007/s13280-021-01665-0 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8692507/ |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Global warming lena delta lena river permafrost |
genre_facet |
Arctic Arctic Ocean Global warming lena delta lena river permafrost |
op_source |
http://lobid.org/resources/99370676417106441#!, 51(2):423-438 |
op_relation |
https://repository.publisso.de/resource/frl:6445384 https://doi.org/10.1007/s13280-021-01665-0 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8692507/ |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1007/s13280-021-01665-0 |
container_title |
Ambio |
container_volume |
51 |
container_issue |
2 |
container_start_page |
423 |
op_container_end_page |
438 |
_version_ |
1782330044779069440 |